System that sounds so real it is easy to mistaken it is not live

Mijo, This is perhaps not the place to discuss it, for fear of boring a few others, but I have been there, done that, when it comes to audio transformers for the SL speakers. First, a single transformer with a 1:100 step-up ratio does not cut the mustard for good bass response from the panel. Of course, since you are subwoofer supplementing, perhaps you could get away with some compromise, but so far as we have been able to find out, the bass transformer on our speakers is 1:250, or something close to that range. (SL will not divulge the information.) And you do not want a full-range trans with such a high step-up ratio, because that will produce very low input impedance as frequency goes up. (Remember that an ESL is naught but a giant capacitor.) For the full-range transformer in my speakers, which I couple with the OEM SL bass transformer at low frequencies, I use a 1:90 ratio in a very hefty step=up that was made in Australia. Unfortunately, that model is discontinued but the same company may make a suitable substitute. Anyway, I tried driving my SLs with the Australian transformer full range without any bass transformer, and the bass to low mid-range was very anemic, totally unacceptable in fact. So, there’s a reason that SL uses two transformers to achieve a robust full range response. I use a single huge air core inductor to roll off the OEM SL bass transformer somewhere in the low midrange, in parallel with the 1:90 Australian transformer running full range with no RC network at all. In theory, you’d think that might present problems. In fact, the first time I heard it in my home, it brought a tear of happiness to my eye. If I were to do this today, and if the Australian company don’t have a suitable substitute for the discontinued units I use, I would consider the full-range 1:75 toroidal transformer made by Plitron. A small benefit of that unit would be slightly higher impedance at high frequencies, compared to what I’ve got. But you are way too concerned about the Z at high frequencies, in my opinion. You once mentioned that you boost response by 6db per octave above 12kHz. That probably contributes to heating up your crossover. But more than a decade ago, some SL users found that the higher the power rating of the R in the treble RC network, the better was the sound. Guys were using humongous resistors that did not even fit into the backplate. (I was one of them.) But real happiness is no RC network at all.

One last thing only buy gold plated connectors or you will develop a hum when the tin connections gets tarnished.

@5windowcoupe Tin and gold share a property which is they boh are resistant to corrosion! This is why tin is often used in connectors and the like. If your tin connections are getting corroded, you've got some kind of chemical involved that is responsible or the connectors are so worn that the copper beneath has been exposed. Tin is often preferable to gold since it is so much harder and therefore harder to wear off when the connector is plugged in and out.

You have to remember That my system is line source. It's volume does not fade with distance like a point source system will.

There's probably a Nobel waiting for someone to show the inverse square law doesn't apply to sound from any source.

Yes my giant horns have gotten more than a few is that a real band playing in your home comments. A few speakers have horns that were actually used in concerts by some of my favorite acts a few shows I attended had the horns in use. When I play back a live recording of some of the bands I get a spooky real sound quality that's damn near real sounding. I also have real theater horns these can playback movies so that it sounds like a real theater but with higher-quality playback.

I never thought it’s possible to listen to a system that make you feel you are on the concert hall or on the venue.Couple of months ago my audiophile needed a help to fix his toilet, I came to help him. After Iam about leave, I requested him to play his system. He did, I stayed 3 hrs to enjoy the music , I’ve never experienced a system like that.It stops me from analyzing the sound, The performances of his system won’t let me, because I felt Iam inside the concert Hall.The system is Using Plinius sa100, Audio Research LS2 b preamp, Meridian CD player, I forgot his tt , I know it’s $500 with goldring cart and musical fidelity phono preamp, speaker cable Kimber 8ag, Speakers B&W 607 or 707? Interconnects Audioquest Columbia , And cobras.